Halloween stores come early this year

Trick-or-treaters can buy their Halloween costumes nearly two months in advance this year.

Halloween pop-up stores are already open in several locations across the country, earlier than in past years.

Spirit Halloween, which operates 1,100 temporary stores in North America, said some locations opened in mid-August. More opened over Labor Day weekend and the company plans to launch 95% of its stores by the end of September, according to Spirit spokeswoman Trisha Lombardo.

The early start is "likely part of the broader trend to extend the selling season," said Christina Norsig, founder of PopUpInsider, an online marketplace for temporary retail space.

In New Jersey, there are 20 Spirit Halloween stores already open, according to the company's website. Stores are also open in California, New York, Illinois and several other U.S. states and Canadian provinces.

Halloween City, a division of Party City, has also been opening pop-up locations. Stores in Texas, Michigan and Florida opened last week. The company says it has hundreds of locations nationwide.